IP
- Anonima Petroli Italiana
- Atyrau Airways
- IP (complexity)
- IP Casino Resort Spa
- IP College
- IP address
- IP code
- IP in IP
- IP3 (disambiguation)
- IP5 (disambiguation)
- Identified patient
- Identity preserved
- Image processing
- Immunity passport
- Immunoprecipitation
- Imperial Police
- In-plane switching
- Incontinentia pigmenti
- Independence Party (disambiguation)
- Independent Party (disambiguation)
- Indian Preference
- Induced polarization
- Industrial policy
- Industrial property
- Inflectional phrase
- Infundibulopelvic ligament
- Inicjatywa Pracownicza
- Innings pitched
- Insolvency practitioner
- Inspector of Police
- Instruction pointer
- Integrated Programme
- Integrated project (EU)
- Intellectual property
- Intelligent Network
- Intercept point
- International Paper
- Internationale Politik
- Internet Protocol
- Interphalangeal joint (disambiguation)
- Interventional pulmonology
- Intestinal permeability
- Intraperitoneal injection
- Ion plating
- Ip (cuneiform)
- Ip (river)
- Ip (surname)
- Ip Man (disambiguation)
- Ip, Sălaj
- Ipswich
- Iraqi Police
- Israeli–Palestinian conflict
- Italiana Petroli
- List of IP version numbers
- Prostacyclin receptor
- Semiconductor intellectual property core